▎ 摘　　要

NOVELTY - Carbon/metal composite material comprises carbon material and a metal, and the content of the carbon material is 0.5 to 60 vol.%, and the balance is metal. The carbon material is graphene, carbon nanotubes, and flaky graphite, and the metal is pure metal silver, copper or an alloy. The composite material has an oriented structure on the microscopic surface, and the carbon material is oriented in a specific direction along the sheet layer, and the interlayer spacing is 2 nm to 200 mu m. USE - Carbon/metal composite material for electrical contact having a microscopically oriented structure and used as an electrical contact material. ADVANTAGE - The carbon/metal composite material has high strength, high hardness, good wear resistance and excellent electrical and thermal conductivity, especially exhibiting optimum mechanical properties and functional properties along the sheet direction and has improved use effect, reduced wear and energy consumption, and prolonged service life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a carbon/metal composite material, which involves: (A) dissolving a carbon material powder, a metal powder and an additive uniformly in water to prepare a water-based slurry containing a carbon material and a metal powder; (B) treating slurry by a freeze casting process, so that the water in the slurry is directionally solidified in the bottom direction of the mold, and the carbon material powder, the metal powder and the additive are discharged between the ice layers, thus realizing the carbon material and the metal powder along the edge and ice crystal growth direction is oriented; (C) demolding solidified slurry, placing in a low temperature, vacuum environment, and subjecting to vacuum freeze-drying treatment to remove the moisture contained thus to obtain a porous body having a microscopically oriented sheet structure; (D) placing blank in a heating furnace, and the body is heated and insulated in a vacuum or a protective atmosphere to remove the organic matter contained; and (E) densifying body after densification to obtain a carbon/metal composite material.